If you’re on a test install, you can try turning on WP_DEBUG to see if it gives you anything useful. I also like to turn on WP_DEBUG_LOG, just in case the errors occur before output. This saves all of the errors to wp-content/debug.log.
Try running the importer with at least WP_DEBUG turned on (I think errors will appear in the live importer box). This should help you get a better understanding of what’s failing.
If nothing useful appears, then yes, try deleting the first 4899 rows from the offending db table. Sometimes the issue is PHP memory/timeout issues. There are steps taken to prevent these, but the importer process is intensive to say the least.
Thanks for the suggestion. I turned on WP_DEBUG and the debug log has about 500,000 lines show up. Not sure I can pinpoint through that where the problem lies.
Just so I’m clear do I delete the first 4899 rows in phpbb_topics or phpbb_topics_posted?
Thanks again for any assistance.
John
Here are the most common errors I’m seeing…
[09-Jun-2016 23:17:18 UTC] PHP Notice: Undefined index: salt in C:\wamp\www\oshh_testing\wp-content\plugins\bbpress\includes\admin\converters\phpBB.php on line 720
[09-Jun-2016 23:17:18 UTC] PHP Stack trace:
[09-Jun-2016 23:17:18 UTC] PHP 1. {main}() C:\wamp\www\oshh_testing\wp-admin\admin-ajax.php:0
[09-Jun-2016 23:17:18 UTC] PHP 2. do_action() C:\wamp\www\oshh_testing\wp-admin\admin-ajax.php:89
[09-Jun-2016 23:17:18 UTC] PHP 3. call_user_func_array:{C:\wamp\www\oshh_testing\wp-includes\plugin.php:525}() C:\wamp\www\oshh_testing\wp-includes\plugin.php:525
[09-Jun-2016 23:17:18 UTC] PHP 4. BBP_Converter->process_callback() C:\wamp\www\oshh_testing\wp-includes\plugin.php:525
[09-Jun-2016 23:17:18 UTC] PHP 5. BBP_Converter_Base->convert_users() C:\wamp\www\oshh_testing\wp-content\plugins\bbpress\includes\admin\converter.php:371
[09-Jun-2016 23:17:18 UTC] PHP 6. BBP_Converter_Base->convert_table() C:\wamp\www\oshh_testing\wp-content\plugins\bbpress\includes\admin\converter.php:885
[09-Jun-2016 23:17:18 UTC] PHP 7. call_user_func_array:{C:\wamp\www\oshh_testing\wp-content\plugins\bbpress\includes\admin\converter.php:1070}() C:\wamp\www\oshh_testing\wp-content\plugins\bbpress\includes\admin\converter.php:1070
[09-Jun-2016 23:17:18 UTC] PHP 8. phpBB->callback_savepass() C:\wamp\www\oshh_testing\wp-content\plugins\bbpress\includes\admin\converter.php:1070